package io;

import java.io.FileWriter;
import java.io.IOException;

public class RW1 {
    public static void main(String[] args) throws IOException {
        FileWriter fw = new FileWriter("c.txt",true);
        char[] chars = new char[]{'a', 'b', 'c', 'd'};
        fw.write("\r\n");
        fw.write(chars,0,3);
        fw.write("dsdsf",1,3);
        fw.close();
    }
}
